Lenses and Images

Which of the following uses a lens and two mirrors?

• binoculars

• microscope

• reflecting telescope

• refracting telescope

Which of the following uses a long-focal-length lens, a short-focal-length lens, and has an inverted image?

• binoculars

• microscope

• reflecting telescope

• refracting telescope

A refracting telescope uses _______ to focus light.

• Lenses

• Mirrors

• Lasers

• Water

Modern telescopes don't use film to capture images, instead they use:

• CCDs

• USBs

• HDDs

• CD-ROMs

What is an example of an application of convex lenses?

• Binoculars

• Microscopes

• Magnifying glasses or reading glasses

• Telescopes

Name one application of concave lenses.

• Musical instruments

• Correcting visual impairments

• Automotive parts

• Cooking utensils

How do camera lenses work in capturing images?

• Camera lenses capture images by absorbing light onto a photosensitive surface.

• Camera lenses capture images by focusing light onto a photosensitive surface.

• Camera lenses capture images by reflecting light onto a photosensitive surface.

• Camera lenses capture images by dispersing light onto a photosensitive surface.

Tags

NGSS.MS-PS4-2

Explain how microscopes use lenses to magnify small objects.

• Microscopes use lenses to bend light rays and magnify small objects.

• Microscopes use lenses to reflect light rays and magnify small objects.

• Microscopes use lenses to absorb light rays and magnify small objects.

• Microscopes use lenses to disperse light rays and magnify small objects.

How are convex lenses used in magnifying glasses?

• Convex lenses are used in magnifying glasses to block light rays and reduce image size.

• Convex lenses are used in magnifying glasses to scatter light rays and distort the image.

• Convex lenses are used in magnifying glasses to converge light rays and create a magnified image.

• Convex lenses are used in magnifying glasses to diverge light rays and create a smaller image.

Describe the role of concave lenses in correcting nearsightedness.

• Concave lenses correct nearsightedness by diverging light rays before they reach the eye, allowing the image to be properly focused on the retina.

• Concave lenses correct nearsightedness by converging light rays before they reach the eye.

• Concave lenses correct nearsightedness by reflecting light rays before they reach the eye.

• Concave lenses correct nearsightedness by absorbing light rays before they reach the eye.